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#1 |
Registered User
Join Date: Dec 2015
Location: San Diego, CA
Posts: 51
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'72 C20 Lift
I have searched the forums and have called Rancho Lifts, Tuff County, 4 Wheel Parts, ORW and Moog, but still haven't found a good solution.
I have a '72 C20 (2WD LWB) with original, sagging front coil springs and sagging rear leaf springs. I'd like to get the truck 2-4" above stock height, but cannot find a method to do this. All lift kits I've found online are designed for 4x4's, which have front leaf springs, and I haven't found front coil springs with lift above stock height. Has anyone found a solution to this? Sorry if this has been answered before.
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1972 C/20 LWB, 350/350 |
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#2 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,270
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Re: '72 C20 Lift
Big Block camper springs[or one ton] with a spacer and rearched rear leafs?
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#3 |
Registered User
Join Date: Dec 2015
Location: San Diego, CA
Posts: 51
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Re: '72 C20 Lift
It sounds like this will be the best option. Are there any big issues with using coil spacers?
__________________
1972 C/20 LWB, 350/350 |
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#4 |
Roto Reuter thats the name...
![]() Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: '72 C20 Lift
When I did my front disc conversion on my 69 C20 I changed out the front springs. Never did anything with the rears. I installed some HD springs (P/N 2772074) bought from NAPA. Tires didn't rub at all. They were 285/70-17 tires with H2 Hummer wheels. The ride was a bit stiff, but hey it's a 3/4 ton truck. Here's a comparison of the springs:
The stock HD C20 springs are as follows: http://www.napaonline.com/Catalog/Ca...752_0162319756 Part No.: 2771752 No. of Coils: 7.92 Free Height: 12.94" Spring ID: 3.68" Spring Load Height: 10" Design Load: 2950 Spring Rate: 1016 Wire Diameter: 0.812" The springs I put on from C10, C20, C30 from 1973-83. They are as follows: http://www.napaonline.com/Catalog/Ca...074_0162301536 Part No.: 2772074 No. of Coils: 8 Free Height: 13.61" Spring ID: 3.676" Spring Load Height: 10" Design Load: 3841 Spring Rate: 1060 Wire Diameter: 0.83" You could also use C30 mid '80's 1-ton springs, but I thought they would be too stiff. Those are: http://www.napaonline.com/Catalog/Ca...085_0162304063 Part No.: 2773085 No. of Coils: 7.93 Free Height: 13.34" Spring ID: 3.65" Spring Load Height: 11" Design Load: 3289 Spring Rate: 1318 Wire Diameter: 0.906"
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~ Dan ![]() My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
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#5 |
Registered User
Join Date: Apr 2009
Location: houston texas
Posts: 1,438
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Re: '72 C20 Lift
I just want to raise the front of my c20 to make it sit level. would these napa springs help?
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#6 |
Registered User
Join Date: Dec 2015
Location: San Diego, CA
Posts: 51
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Re: '72 C20 Lift
This was a huge help! Thanks a ton.
__________________
1972 C/20 LWB, 350/350 |
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#7 |
Roto Reuter thats the name...
![]() Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: '72 C20 Lift
Should help. Brought up the front end and leveled out mine.
__________________
~ Dan ![]() My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
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coil, leaf, lift |
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